Additional work to get array literal allocation tracking working, even with --always-opt

src/arm/codegen-arm.cc

Index: src/arm/codegen-arm.cc
diff --git a/src/arm/codegen-arm.cc b/src/arm/codegen-arm.cc
index 9d008232e356871e9a0aac2b49ebebf10b41fbd2..1a5d01d43a83adb7929a6a9971b14267b7592a6e 100644
--- a/src/arm/codegen-arm.cc
+++ b/src/arm/codegen-arm.cc
@@ -144,7 +144,7 @@ void StubRuntimeCallHelper::AfterCall(MacroAssembler* masm) const {
 #define __ ACCESS_MASM(masm)
 
 void ElementsTransitionGenerator::GenerateMapChangeElementsTransition(
-    MacroAssembler* masm) {
+    MacroAssembler* masm, Label* fail) {

[danno, 2013/01/10 22:58:59]

nit: here and elsewhere it might be clearer if you called the label
found_allocation_site_info rather than fail.

[mvstanton, 2013/01/11 13:43:01]

Done.

   // ----------- S t a t e -------------
   //  -- r0    : value
   //  -- r1    : key
@@ -153,6 +153,10 @@ void ElementsTransitionGenerator::GenerateMapChangeElementsTransition(
   //  -- r3    : target map, scratch for subsequent call
   //  -- r4    : scratch (elements)
   // -----------------------------------
+  if (FLAG_track_allocation_sites && fail != NULL) {
+    masm->TestJSArrayForAllocationSiteInfo(r2, r4, fail);
+  }
+
   // Set transitioned map.
   __ str(r3, FieldMemOperand(r2, HeapObject::kMapOffset));
   __ RecordWriteField(r2,